Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 12-08-2020 and time 04:26:07 (Italy) in region 5 km W Monte Cavallo (MC)

A magnitude ML 0.9 earthquake occured in region: 5 km W Monte Cavallo (MC), on

  • 12-08-2020 02:26:07 (UTC)
  • 12-08-2020 04:26:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0090, 12.9380 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Monte Cavallo MC 6 145 145
Serravalle di Chienti MC 7 1070 1215
Pieve Torina MC 10 1458 2673
Muccia MC 12 915 3588
Fiordimonte MC 13 202 3790
Sellano PG 13 1079 4869
Pievebovigliana MC 13 866 5735
Visso MC 15 1107 6842
Sefro MC 15 422 7264
Valtopina PG 16 1398 8662
Nocera Umbra PG 17 5839 14501
Preci PG 17 724 15225
Camerino MC 18 6974 22199
Ussita MC 18 444 22643
Fiastra MC 18 559 23202
Pioraco MC 19 1134 24336
Acquacanina MC 20 121 24457
Foligno PG 20 57155 81612

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Foligno (57155 inhabitants)
46 Km E of Perugia (166134 inhabitants)
55 Km NE of Terni (111501 inhabitants)
74 Km NW of Teramo (54892 inhabitants)
82 Km NW of L'Aquila (69753 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
93 Km S of Fano (60888 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
100 Km SE of Arezzo (99543 inhabitants)
100 Km S of Pesaro (94582 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 0.9 2020-08-12
02:26:07		 43.0087 12.9378 10 2020-08-12
02:34:31		 Sala Sismica INGV-Roma 81892831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-12 02:26:07 ± 0.1
Latitude 43.0087 ± 0.0054
Longitude 12.9378 ± 0.0061
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81892831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 615
Semi-minor axis of confidence ellipse (meter) 447
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 214
Circular confidence region, given by single value of horizontal uncertainty (meter) 610.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38221
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 81892831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-12 02:34:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CR.STON.BHZ. 2020-08-12T02:27:46.34 3.0 undecidable manual Sn 0.17 0
GU.CANO.HHZ. 2020-08-12T02:27:40.80 3.0 undecidable manual Sn 1.34 0
GU.MGRO.HHZ. 2020-08-12T02:27:11.84 3.0 positive manual Pg 10.91 0
IV.PSB1.HHZ. 2020-08-12T02:26:47.95 3.0 positive manual Pg 1.89 0
IV.CSNT.HHZ. 2020-08-12T02:26:36.62 3.0 undecidable manual S -5.72 0
IV.MF5.EHZ. 2020-08-12T02:26:22.18 0.6 undecidable manual S 93 42.4242 50 0.89 36
IV.EL6.EHZ. 2020-08-12T02:26:20.22 0.3 undecidable manual S 20 37.9287 50 0.12 70
IV.MMO1.EHZ. 2020-08-12T02:26:18.84 0.6 undecidable manual S 111 33.8439 50 -0.16 47
IV.MC2.EHZ. 2020-08-12T02:26:16.56 0.6 undecidable manual S 118 23.0547 114 0.51 44
IV.CSP1.EHZ. 2020-08-12T02:26:15.87 0.3 undecidable manual S 67 23.5542 113 -0.32 69
IV.MF5.EHZ. 2020-08-12T02:26:15.72 0.1 undecidable manual P 93 42.4242 50 0.34 89
IV.NRCA.HHZ. 2020-08-12T02:26:15.89 0.3 undecidable manual S 144 24.1536 113 -0.5 66
IV.ASSB.HHZ. 2020-08-12T02:26:15.80 0.6 undecidable manual S 280 22.9548 114 -0.21 47
IV.EL6.EHZ. 2020-08-12T02:26:14.04 0.3 undecidable manual P 20 37.9287 50 -0.65 61
IV.MMO1.EHZ. 2020-08-12T02:26:13.82 0.1 undecidable manual P 111 33.8439 50 -0.23 92
IV.MC2.EHZ. 2020-08-12T02:26:12.32 0.3 undecidable manual P 118 23.0547 114 -0.03 73
IV.FDMO.HHE. 2020-08-12T02:26:12.70 0.6 undecidable manual S 76 12.4764 129 -0.19 48
IV.ASSB.HHZ. 2020-08-12T02:26:12.26 0.3 undecidable manual P 280 22.9548 114 -0.07 73
IV.MML1.EHE. 2020-08-12T02:26:12.84 0.6 undecidable manual S 13 11.9769 130 0.1 49
IV.CSP1.EHZ. 2020-08-12T02:26:12.28 0.1 undecidable manual P 67 23.5542 113 -0.16 95
IV.FEMA.HNN. 2020-08-12T02:26:12.39 0.6 undecidable manual S 120 10.4784 134 0.04 50
IV.NRCA.HHZ. 2020-08-12T02:26:12.31 1.0 undecidable manual P 144 24.1536 113 -0.24 23
IT.MTCL.HGN. 2020-08-12T02:26:11.11 0.6 undecidable manual S 108 5.2947 153 -0.16 49
IV.CESI.HHZ. 2020-08-12T02:26:11.11 0.6 undecidable manual S 261 2.6973 165 0.16 49
IV.FEMA.HNN. 2020-08-12T02:26:10.42 0.1 undecidable manual P 120 10.4784 134 0.2 97
IV.FDMO.HHE. 2020-08-12T02:26:10.52 0.1 undecidable manual P 76 12.4764 129 -0.01 100
IV.MML1.EHE. 2020-08-12T02:26:10.59 0.1 undecidable manual P 13 11.9769 130 0.15 97
IT.MTCL.HGN. 2020-08-12T02:26:09.71 0.1 undecidable manual P 108 5.2947 153 0.12 99
IV.CESI.HHZ. 2020-08-12T02:26:09.68 0.1 undecidable manual P 261 2.6973 165 0.27 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.7 0.00009425 0.46 AML other m 2020-08-12T02:26:11.15
IV.CESI.HHN. ML:0.9 0.00013700000000000002 0.2 AML other m 2020-08-12T02:26:11.26
IV.ASSB.HHE. ML:0.9 0.0000512 0.16 AML other m 2020-08-12T02:26:16.14
IV.CESI.HNE. ML:0.7 0.0000870849815 0.4208 AML other m 2020-08-12T02:26:11.20
IV.CESI.HNN. ML:0.9 0.00014051305 0.2608 AML other m 2020-08-12T02:26:11.39
IV.ASSB.HHN. ML:0.9 0.000047642645 0.16 AML other m 2020-08-12T02:26:15.98
IV.NRCA.HHE. ML:0.9 0.00005200023999999999 0.08 AML other m 2020-08-12T02:26:16.37
IV.NRCA.HHN. ML:1.1 0.00007174106499999999 0.08 AML other m 2020-08-12T02:26:16.20
IV.NRCA.HNE. ML:1.3 0.00011827799 0.5296 AML other m 2020-08-12T02:26:16.11
IV.NRCA.HNN. ML:1.2 0.00010452883499999998 0.5616 AML other m 2020-08-12T02:26:16.07
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download